Danby left word with my secretary ________ he would call again in the afternoon.

A．who

B．that

C．as

D．which

股票发行申请经核准后，发行人应自( )内发行股票；超过未发行的，核准文件失效，须重新经中国证监会核准后方可发行。

A．3个月

B．6个月

C．9个月

D．12个月